From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5026EC6783C for ; Fri, 12 Oct 2018 14:42:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1482120645 for ; Fri, 12 Oct 2018 14:42:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1482120645 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728955AbeJLWOw (ORCPT ); Fri, 12 Oct 2018 18:14:52 -0400 Received: from mail-oi1-f195.google.com ([209.85.167.195]:38489 "EHLO mail-oi1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728720AbeJLWOw (ORCPT ); Fri, 12 Oct 2018 18:14:52 -0400 Received: by mail-oi1-f195.google.com with SMTP id u197-v6so10029345oif.5; Fri, 12 Oct 2018 07:42:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=xNsGhKaWzISIrxhmqLxOj3p3UqLyAN7cEJHul67dkHg=; b=bT1wuk6J2nhQanWdSga6eKY9jGCIl1TmyZGsgpM316zU/XG6YI4PwqMFRp8ZAY3Awd e07LhxpIWrAjsi8hTPFnR0zjQKhg2kB0JbJPNeQraop5tgZGxkMPULAURHiczp0nPk5l Qz+aybormIHkAHyx//Ltd4OnvvQbhM7AfL49PpgZwEqRvCrZkGzztE1J8OWuOcOqVwyE p0XTP0J2Il1w4qyEjLdnwP6zO7858BmF2Hm4bhc0DLNt0tRv5sPVKMsXsgEulyL0IU0m YRwLaJrDjYv2UiUWbOt3I2Gc6i+o0K7afsig9q5pyiAQlZ7bKPEsgDiPW/zIOxVpkVjj 6X6g== X-Gm-Message-State: ABuFfoiDdsPTqoFC7DGwB5FoFH1fF+ERMgDzhW13fT9VERoMZREvUuu7 HFU8tScEMwm0GqS0IkV1sZvAS6U= X-Google-Smtp-Source: ACcGV621i3MGD3qGlMv/xxezL2Jcow9EsdklG1+yKdTSkY42IDsodxwvQOhgox2pOuGUbxqpryqCnw== X-Received: by 2002:aca:895:: with SMTP id 143-v6mr3465753oii.309.1539355326351; Fri, 12 Oct 2018 07:42:06 -0700 (PDT) Received: from localhost (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.gmail.com with ESMTPSA id 65sm366263ott.63.2018.10.12.07.42.05 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 12 Oct 2018 07:42:05 -0700 (PDT) Date: Fri, 12 Oct 2018 09:42:04 -0500 From: Rob Herring To: Pierre-Yves MORDRET Cc: Vinod Koul , Mark Rutland , Alexandre Torgue , Maxime Coquelin , Dan Williams , devicetree@vger.kernel.org, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 1/7] dt-bindings: stm32-dma: Add DMA/MDMA chaining support bindings Message-ID: <20181012144204.GA13615@bogus> References: <1538139715-24406-1-git-send-email-pierre-yves.mordret@st.com> <1538139715-24406-2-git-send-email-pierre-yves.mordret@st.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1538139715-24406-2-git-send-email-pierre-yves.mordret@st.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 28, 2018 at 03:01:49PM +0200, Pierre-Yves MORDRET wrote: > From: M'boumba Cedric Madianga > > This patch adds dma bindings to support DMA/MDMA chaining transfer. > 1 bit is to manage both DMA FIFO Threshold > 1 bit is to manage DMA/MDMA Chaining features. > 2 bits are used to specify SDRAM size to use for DMA/MDMA chaining. > The size in bytes of a certain order is given by the formula: > (2 ^ order) * PAGE_SIZE. > The order is given by those 2 bits. > For cyclic, whether chaining is chosen, any value above 1 can be set : > SRAM buffer size will rely on period size and not on this DT value. > > Signed-off-by: Pierre-Yves MORDRET Missing author S-o-b. > --- > Version history: > v3: > v2: > * rework content > v1: > * Initial > --- > --- > .../devicetree/bindings/dma/stm32-dma.txt | 27 +++++++++++++++++++++- > 1 file changed, 26 insertions(+), 1 deletion(-)